Zimmerman trial witness describes screams for help

In the George Zimmerman trial Thursday, a witness who heard a struggle outside her window the night Trayvon Martin died, described the screams for help and the steps she took to dial 911.

http://www.wbir.com/video/2514356273001/1/Zimmerman-trial-witness-describes-screams-for-helphttp://bc_gvpc.edgesuite.net/img/963482463001/201306/3192/963482463001_2514326534001_thumbnail-for-video-2514338659001.jpg?pubId=963482463001Zimmerman trial witness describes screams for helpIn the George Zimmerman trial Thursday, a witness who heard a struggle outside her window the night Trayvon Martin died, described the screams for help and the steps she took to dial 911.VPC;USA Todaygeorge zimmermanzimmerman trialvpczimmtrayvon martin trialZIMMvpcNational Newstrayvon martin murder01:35